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The Founders Review

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

LLC services · Wisconsin

3 Best LLC Services in Wisconsin (2026)

The best LLC services in Wisconsin for 2026 are WI Registered Agent.org ($199), Wisconsin Registered Agent.co ($199) and Mainstay Filing ($199), in that order. We put WI Registered Agent.org on top for a $199 formation fee over the state's own, then $99 a year for the agent.

Written by The Founders Review editorial team

Place1
Number one here

WI Registered Agent.org

1. WI Registered Agent.org: best for a Wisconsin-only LLC on a budget

$199 up front, $99 a year from year two
Our mark9.2out of 10

We put WI Registered Agent.org first: Wisconsin formation at $199 plus state fees, with a $99 agent renewal.

The plan covers an in-state street address for your registered office, with legal documents scanned and sent to you online.

The annual report is left to you every year.

On our method the lower three-year cost outweighs what Mainstay adds to its price.

What you get

  • The formation filing
  • First year of registered agent service

Why pick it

  • First year of registered agent service included
  • $199 + state fee
  • $99 yearly from year two

Less good

  • Annual report filing not in the price
  • EIN help is $99
Place2
Best for a Wisconsin-only company

Wisconsin Registered Agent.co

2. Wisconsin Registered Agent.co: best for a low renewal

$199 up front, $99 a year from year two
Our mark8.7out of 10

In second place, Wisconsin Registered Agent.co: Wisconsin formation at $199 plus state fees, with a $99 agent renewal.

The plan covers an in-state street address for your registered office, with legal documents scanned and sent to you online.

The annual report is left to you every year.

WI Registered Agent.org and Wisconsin Registered Agent.co publish the same prices and the same plan features, so the gap between them is small and either is a sound choice.

What you get

  • The formation filing
  • First year of registered agent service

Why pick it

  • $99 yearly from year two
  • $199 + state fee
  • First year of registered agent service included

Less good

  • Annual report filing not in the price
  • EIN help is $99
Place3
Report filing included

Mainstay Filing

3. Mainstay Filing: best for formation, agent and annual report in one price

$199 a year plus the state fee; $329 due today
Our mark8.6out of 10

In third place, Mainstay Filing: a single $199 price each year covers the filing, the agent and the annual report.

The renewal includes filing the annual report ($25 state fee, every year, due end of the calendar quarter containing the LLC's anniversary date), so a missed deadline and its $25 late fee is less likely.

The extra $200 over three years is the reason it trails WI Registered Agent.org on our cost score.

What you get

  • Formation prepared and filed
  • Your registered agent, all year
  • Your annual report prepared and filed
  • EIN application

Why pick it

  • $199 a year, all in, annual report included
  • $199 renewal, no add-ons
  • State fees passed through at cost
  • EIN application included

Less good

  • $100 more per year than WI Registered Agent.org from year two
Visit Mainstay FilingPartner link. We may earn money if you buy.Our full Mainstay Filing review

Shortlist at a glance

RankServiceOur scoreService feeYear twoBest forLink
1WI Registered Agent.org9.2$199$99/yrA Wisconsin-only LLC on a budgetVisit WI Registered Agent.orgPartner link. We may earn money if you buy.
2Wisconsin Registered Agent.co8.7$199$99/yrA Wisconsin-only LLC on a budgetVisit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
3Mainstay Filing8.6$199$199/yrFormation, agent and annual report in one priceVisit Mainstay FilingPartner link. We may earn money if you buy.

The scores are ours: editorial marks out of 10 built from the weighted criteria on How we rank, not ratings from customers.

Wisconsin LLC service cost over three years (2026)

ServiceYear oneYear twoYear threeThree-year totalAnnual report filed for you
WI Registered Agent.org$199$99$99$397No
Wisconsin Registered Agent.co$199$99$99$397No
Mainstay Filing$199$199$199$597Yes

We read these prices on the companies' own sites on November 12, 2026. These totals leave out the $130 state filing fee, which every service passes through.

How the order was decided

Our method scores three-year cost (30%) and what one price covers (30%) most heavily, then renewal terms, fit for the state and price clarity. Here the order came down to three-year cost.

At $397 over three years, WI Registered Agent.org saves $200 against Mainstay Filing. Mainstay would also file Wisconsin's annual report, but the report itself is $25 and an owner who files it on time keeps that money, so the lower price scored higher here.

The full method is on How we rank.

Wisconsin LLC filing fee and form (official source)

The Department of Financial Institutions (DFI) charges $130 for the Articles of Organization - Limited Liability Company (Form 502) (Wis. Stat. § 183.0201), on top of any service fee.

What comes after formation

A $25 annual report is due every year by end of the calendar quarter containing the LLC's anniversary date. Late filings cost $25. Every LLC must name a registered agent with an in-state street address.

What Wisconsin founders ask

How much does it cost to form an LLC in Wisconsin?

The state charges $130; our picks add $199.

What form creates the LLC?

The Articles of Organization - Limited Liability Company (Form 502), filed with the Department of Financial Institutions (DFI).

Do I need a registered agent for a Wisconsin LLC?

Every LLC must name a registered agent with an in-state street address.

What yearly filings does a Wisconsin LLC have?

The annual report, every year, due end of the calendar quarter containing the LLC's anniversary date, with a $25 state fee.

Is the EIN application included?

Mainstay Filing's yearly price includes it. WI Registered Agent.org and Wisconsin Registered Agent.co charge $99 for it. The IRS itself charges no fee for an EIN.

Which LLC service is best in Wisconsin?

We rank WI Registered Agent.org first for $199 plus the Wisconsin filing fee, with the first year of registered agent service included and $99 a year after that.

Read next

Sources and dates

  1. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (checked August 2026): dfi.wi.gov/Documents/BusinessServices/BusinessEntities/Forms/CORP5.pdf
  2. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (checked August 2026): dfi.wi.gov/Documents/BusinessServices/BusinessEntities/Forms/CORP5i.pd
  3. Wisconsin report due date (checked August 2026): docs.legis.wisconsin.gov/statutes/statutes/183/II/0210
  4. Wis. Stat. § 183.0201 (checked August 2026): dfi.wi.gov/Documents/BusinessServices/BusinessEntities/Forms/CORP502.p
  5. Wisconsin formation fee: Filing fee, official source (checked October 2026): dfi.wi.gov/Pages/BusinessServices/BusinessEntities/Fees.aspx
  6. Wisconsin registered agent statute (checked October 2026): docs.legis.wisconsin.gov/statutes/statutes/183/i/0115
  7. Pricing and service pages of WI Registered Agent.org, read November 12, 2026
  8. Pricing and service pages of Wisconsin Registered Agent.co, read November 12, 2026
  9. Wisconsin service page of Mainstay Filing, read November 12, 2026